Determination of selection criteria for seed yield and seed oil content in Vernonia (Vernonia galamensis variety ethiopica) |
| |
| Authors: | Hussein Shimelis Arno Hugo |
| |
| Institution: | 1. University of KwaZulu-Natal, School of Agricultural Sciences and Agribusiness, African Center for Crop Improvement, Private Bag X01, Scottsville 3209, South Africa;2. University of the Free State, Department of Microbial, Biochemical and Food Biotechnology, P.O. Box 339, Bloemfontein 9300, South Africa;1. Laboratory of Natural Products Technology, School of Pharmacy, Fluminense Federal University, Rua Doutor Mário Viana 523, Santa Rosa, Niterói, CEP 24241-000 Rio de Janeiro State, Brazil;2. Postgraduate Program of Applied Sciences to Health Products, School of Pharmacy, Fluminense Federal University, Rua Doutor Mário Viana 523, Santa Rosa, Niterói, CEP 24241-000 Rio de Janeiro State, Brazil;3. Department of Pharmacy and Pharmaceutical Administration, School of Pharmacy, Fluminense Federal University, Rua Doutor Mário Viana 523, Santa Rosa, Niterói, CEP 24241-000 Rio de Janeiro State, Brazil;4. Biological and Health Sciences Center, State University of West Zone, Rua Manuel Caldeira de Alvarenga, 1203, Campo Grande, CEP 23070-200 Rio de Janeiro State, Brazil;1. Nuclear Science and Technology Development Center, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan;2. Department of Food Science and Biotechnology, National Chung Hsing University, No. 250, Kuo Kuang Road, Taichung, 40227, Taiwan;3. Institute of Nuclear Energy Research Atomic Energy Council, No. 1000, Wenhua Road, Tauyuan, 32546, Taiwan;4. Institute of Nuclear Engineering and Science, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan;1. Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, Msida, Malta;2. Institute de Chimie et de Biologie des Membranes et des Nano-Objets, CNRS-UMR5248, Université Bordeaux, Pessac, France;3. Centre for Molecular Medicine and Biobanking, Biomedical Sciences Building, University of Malta, Msida, Malta;1. Lihuanian Research Centre for Agriculture and Forestry Instituto al. 1, LT-58344 Akademija, Kedainiai district, Lithuania;2. Aleksandras Stulginskis University, Studentu st. 11, LT-53361 Akademija, Kaunas district, Lithuania;1. Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt;2. Department of Pharmacology, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt;1. Field Crops Department, Agricultural Faculty, Dicle University, Diyarbak?r, Turkey;2. Field Crops Department, Agricultural Faculty, Cukurova University, Adana, Turkey |
| |
| Abstract: | The magnitude of relationships among different traits is important in plant breeding programs to identify the best selection criteria and improve the efficiency of selection. This study was conducted to determine relationships between seed yield and seed oil content with other important agronomic traits among 36 diverse accessions of Vernonia (Vernonia galamensis variety ethiopica), a potentially novel industrial oilseed crop. Field evaluations were conducted during 2005, 2006 and 2007 at the Limpopo Province in South Africa using a partially balanced lattice design. Simple correlation and path analysis were performed to identify the best selection criteria for increased seed yield and seed oil content. Simple correlation and path analyses revealed that the formation of productive primary heads strongly associated with increased seed yield (rg = 0.81, p < 0.001). Furthermore, path analysis indicated selection for increased number of primary heads would bring about simultaneous and favorable change towards reduced days to maturity and shorter plant height. Further associational study of traits with seed oil content showed a significant (p < 0.05) correlation between oil content with 1000 seed weight (rg = 0.4). The path analysis, however, exposed seed yield followed by 1000 seed weight with significant direct effect on seed oil content. The study demonstrated that selection for increased number of productive primary heads is the principal selection criterion to improve seed yield. Whereas selection for 1000 seed weight and increased seed yield serve as major selection criteria to achieve increased oil content in V. galemanesis. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
